公开(公告)号：US20210266137A1

公开(公告)日：2021-08-26

申请号：US16801944

申请日：2020-02-26

Applicant: Cisco Technology, Inc.

Inventor： Pooya Monajemi ,  Brian Hart ,  Matthew Aaron Silverman ,  Gautam D. Bhanage

IPC: H04L5/14 ,  H04W52/28 ,  H04W74/08

Abstract: A wireless access point device is full-duplex capable and serves wireless communication for at least first and second wireless client devices. The wireless access point device sends to the first wireless client device a trigger frame that causes the first wireless client device to send an uplink transmission to the wireless access point after a first time interval. The wireless access point device waits a second time interval after the first wireless client is expected to begin sending the uplink transmission. The wireless access point device receives the uplink transmission from the first wireless client device. After the second time interval, and while receiving the uplink transmission from the first wireless client device, the wireless access point device sends to the second wireless client device a downlink transmission that overlaps at least partially in frequency and time with the uplink transmission from the first wireless client device.

公开(公告)号：US20210235325A1

公开(公告)日：2021-07-29

申请号：US16752499

申请日：2020-01-24

Applicant: Cisco Technology, Inc.

Inventor： Vishal Satyendra Desai ,  Benjamin Jacob Cizdziel ,  Pooya Monajemi ,  Young Il Choi ,  Santosh Babaji Kulkarni

IPC: H04W28/20 ,  H04W28/06 ,  H04W88/14

Abstract: Systems and methods herein can analyze a bandwidth restriction in a communication stream of an Access Point (AP). Then, based on the bandwidth restriction, the AP can determine a lower amount of wireless bandwidth to provide to station wireless communicating to the AP. The AP can then modify a bandwidth allocation assigned to the station based on the lower amount of wireless bandwidth.

公开(公告)号：US11063675B2

公开(公告)日：2021-07-13

申请号：US16292962

申请日：2019-03-05

Applicant: Cisco Technology, Inc.

Inventor： Matthew Aaron Silverman ,  Pooya Monajemi ,  Vishal Satyendra Desai ,  John Martin Blosco

IPC: H04B15/00 ,  H04B17/318 ,  H04B1/38

Abstract: An access point allocates resource units within a first channel to mitigate interference from an adjacent second channel. The access point obtains a measure of signal strength corresponding to each wireless device attached to an access point, and assigns, for each wireless device, resource units with a first frequency band of the first channel to mitigate interference with a second frequency band of a second channel adjacent to the first channel. An assignment between a set of resource units and a particular wireless device is based on the measure of signal strength corresponding to the particular wireless device. The access point communicates with the wireless devices on the resource units.

公开(公告)号：US20210083927A1

公开(公告)日：2021-03-18

申请号：US16571360

申请日：2019-09-16

Applicant: Cisco Technology Inc.

Inventor： Gautam Bhanage ,  Matthew Aaron Silverman ,  Pooya Monajemi ,  Brian Hart

IPC: H04L12/24 ,  H04L5/00 ,  H04W72/08 ,  H04L12/26

Abstract: A method is provided in wireless access point in a wireless communications network. The method includes assigning a first resource unit for a first transmission between the wireless access point and a wireless terminal. The method further includes determining that the first transmission using the first resource unit failed. The method further includes selecting a candidate resource unit for a retry transmission. The candidate resource unit is selected based on at least an average previous success rate of available resource units at a width of the first resource unit and a correlation between the candidate resource unit and the first resource unit. The method further includes assigning the candidate resource unit for the retry transmission if a success rate of the candidate resource unit is above a predetermined threshold.

公开(公告)号：US10938629B1

公开(公告)日：2021-03-02

申请号：US16571360

申请日：2019-09-16

Applicant: Cisco Technology Inc.

Inventor： Gautam Bhanage ,  Matthew Aaron Silverman ,  Pooya Monajemi ,  Brian Hart

IPC: H04L5/00 ,  H04L12/24 ,  H04L12/26 ,  H04W72/08 ,  H04W88/08 ,  H04W84/12

Abstract: A method is provided in wireless access point in a wireless communications network. The method includes assigning a first resource unit for a first transmission between the wireless access point and a wireless terminal. The method further includes determining that the first transmission using the first resource unit failed. The method further includes selecting a candidate resource unit for a retry transmission. The candidate resource unit is selected based on at least an average previous success rate of available resource units at a width of the first resource unit and a correlation between the candidate resource unit and the first resource unit. The method further includes assigning the candidate resource unit for the retry transmission if a success rate of the candidate resource unit is above a predetermined threshold.

公开(公告)号：US10911279B2

公开(公告)日：2021-02-02

申请号：US16293057

申请日：2019-03-05

Applicant: Cisco Technology, Inc.

Inventor： Gautam D. Bhanage ,  Pooya Monajemi ,  Matthew Aaron Silverman

IPC: H04W4/00 ,  H04L27/26 ,  H04B17/318 ,  H04B17/336 ,  H04L5/00

Abstract: A method includes obtaining configuration parameters of wireless client devices served by an access point in a wireless local area network basic service set; calculating a conservativeness scaling factor for a first wireless client device in the basic service set based on the configuration parameters; determining a new guard interval of an orthogonal frequency division multiplexed symbol for the first wireless client device based on the conservativeness scaling factor; and replacing an old guard interval for the first wireless client device with the new guard interval.

公开(公告)号：US10863379B2

公开(公告)日：2020-12-08

申请号：US16505105

申请日：2019-07-08

Applicant: Cisco Technology, Inc.

Inventor： Santosh Ghanshyam Pandey ,  Pooya Monajemi ,  Vishal Desai

IPC: H04L12/26 ,  H04W28/02 ,  H04W24/02 ,  H04W84/12

Abstract: In one embodiment, a basic service set (BSS) color assignment apparatus includes a processor, and a memory to store data used by the processor, wherein the processor is operative to calculate, for each one BSS color of a plurality of BSS colors, a BSS color assignment metric at least based on use of the one BSS color in at least one neighboring BSS neighboring a BSS of an access point in an infrastructure wireless local area network (WLAN), yielding a plurality of BSS color assignment metrics for the BSS of the access point, select one of the plurality of BSS color assignment metrics associated with an optimal choice BSS color of the plurality of BSS colors for the BSS of the access point and assign the optimal choice BSS color to the BSS of the access point.

公开(公告)号：US20200288353A1

公开(公告)日：2020-09-10

申请号：US16296523

申请日：2019-03-08

Applicant: Cisco Technology, Inc.

Inventor： Santosh Babaji Kulkarni ,  Vishal Satyendra Desai ,  Pooya Monajemi ,  Young II Choi

IPC: H04W28/26 ,  H04W28/18

Abstract: In one embodiment, a supervisory device for a wireless network classifies each client of a set of access points in the wireless network as either an Internet of Things (IoT) device or a non-IoT device. The supervisory device selects, for each of the access points in the set, a channel width based on the classifications of its clients. The supervisory device assigns, for each of the access points in the set, one or more wireless channels for use by that access point, based on the selected channel width for that access point. The supervisory device instructs the access points in the set to use their assigned channels to communicate with their clients.

公开(公告)号：US20200287763A1

公开(公告)日：2020-09-10

申请号：US16293057

申请日：2019-03-05

Applicant: Cisco Technology, Inc.

Inventor： Gautam D. Bhanage ,  Pooya Monajemi ,  Matthew Aaron Silverman

IPC: H04L27/26 ,  H04B17/336 ,  H04B17/318

Abstract: A method includes obtaining configuration parameters of wireless client devices served by an access point in a wireless local area network basic service set; calculating a conservativeness scaling factor for a first wireless client device in the basic service set based on the configuration parameters; determining a new guard interval of an orthogonal frequency division multiplexed symbol for the first wireless client device based on the conservativeness scaling factor; and replacing an old guard interval for the first wireless client device with the new guard interval.

公开(公告)号：US10568134B2

公开(公告)日：2020-02-18

申请号：US16037480

申请日：2018-07-17

Applicant: Cisco Technology, Inc.

Inventor： Brian D. Hart ,  David Kloper ,  Pooya Monajemi ,  Matthew A. Silverman

IPC: H04W74/08 ,  H04L5/00 ,  H04W72/04 ,  H04W52/24 ,  H04W52/36 ,  H04L1/00 ,  H04W52/22 ,  H04W52/46

Abstract: A third device stores a receive signal strength of a received response data unit transmitted by a second device after receiving a first data unit transmitted by a first device. The third device obtains a clear channel access parameter included in a header of a second data unit transmitted by the first device to the second device and detects transmission exchanges in each of a plurality of service sets to use as samples of overlapping service set activity. The third device determines a minimum transmit power to be used by the third device to send a transmission to the fourth device based on transmission exchanges between devices in a particular service set. The third device determines whether to send a transmission to the fourth device based on the clear channel access parameter and minimum transmit power.